|No.|Date|Tournament|Winning score|Margin of victory|Runner(s)-up|
|---|---|---|---|---|---|
|1|Jul 18, 1982|Miller High Life QCO|−12 (68-66-65-69=268)|2 strokes|Brad Bryant, Pat McGowan|
|2|Oct 23, 1983|Walt Disney World Golf Classic|−19 (69-64-69-67=269)|2 strokes|Nick Faldo, Mark McCumber|
|3|Mar 15, 1987|Hertz Bay Hill Classic|−20 (69-67-63-65=264)|3 strokes|David Frost|
|4|Apr 16, 1989|MCI Heritage Golf Classic|−16 (65-67-67-69=268)|5 strokes|Kenny Perry|
|5|Aug 13, 1989|PGA Championship|−12 (74-66-69-67=276)|1 stroke|Andy Bean, Mike Reid,  Curtis Strange|
|6|Apr 15, 1990|MCI Heritage Golf Classic|−8 (70-69-66-71=276)|Playoff|Steve Jones, Larry Mize|
|7|May 6, 1990|GTE Byron Nelson Golf Classic|−8 (67-68-67=202)^|2 strokes|Lanny Wadkins|
|8|Jun 17, 1991|U.S. Open|−6 (67-70-73-72=282)|Playoff|Scott Simpson|
|9|Apr 30, 1995|Shell Houston Open|−12 (73-65-70-68=276)|Playoff|Scott Hoch|
|10|Feb 7, 1999|AT&T Pebble Beach National Pro-Am|−10 (69-64-73=206)^|1 stroke|Frank Lickliter II|
|11|Jun 20, 1999|U.S. Open|−1 (68-69-72-70=279)|1 stroke|Phil Mickelson|

Question: what were the total number of times the u.s. open was the tournament?
Answer: 2